Find IP IPv4 Network/Subnet and its host address ranges

What is an IPv4 IP address its network and host address ranges?

An IPv4 IP address is an address used in order to uniquely identify a device on an IP network. The address is made up of 32 binary bits, which can be divisible into a network portion and host portion with the help of a subnet mask. The 32 binary bits are broken into four octets (1 octet = 8 bits). Each octet is converted to decimal and separated by a period (dot).

How to Subnet IPv4? Its simple answer is that subnetting is the process of taking a network and splitting it into smaller networks, known as subnets. It's used to free up more public IPv4 addresses and segment networks for security and easier management.
Following are the ranges of IPv4 subnet/network address and their host addresses.

IPv4 AddressIPv6 Address
115.242.21.1 0:0:0:0:0:ffff:73f2:1501
115.242.21.2 0:0:0:0:0:ffff:73f2:1502
115.242.21.3 0:0:0:0:0:ffff:73f2:1503
115.242.21.4 0:0:0:0:0:ffff:73f2:1504
115.242.21.5 0:0:0:0:0:ffff:73f2:1505
115.242.21.6 0:0:0:0:0:ffff:73f2:1506
115.242.21.7 0:0:0:0:0:ffff:73f2:1507
115.242.21.8 0:0:0:0:0:ffff:73f2:1508
115.242.21.9 0:0:0:0:0:ffff:73f2:1509
115.242.21.10 0:0:0:0:0:ffff:73f2:150a
115.242.21.11 0:0:0:0:0:ffff:73f2:150b
115.242.21.12 0:0:0:0:0:ffff:73f2:150c
115.242.21.13 0:0:0:0:0:ffff:73f2:150d
115.242.21.14 0:0:0:0:0:ffff:73f2:150e
115.242.21.15 0:0:0:0:0:ffff:73f2:150f
115.242.21.16 0:0:0:0:0:ffff:73f2:1510
115.242.21.17 0:0:0:0:0:ffff:73f2:1511
115.242.21.18 0:0:0:0:0:ffff:73f2:1512
115.242.21.19 0:0:0:0:0:ffff:73f2:1513
115.242.21.20 0:0:0:0:0:ffff:73f2:1514
115.242.21.21 0:0:0:0:0:ffff:73f2:1515
115.242.21.22 0:0:0:0:0:ffff:73f2:1516
115.242.21.23 0:0:0:0:0:ffff:73f2:1517
115.242.21.24 0:0:0:0:0:ffff:73f2:1518
115.242.21.25 0:0:0:0:0:ffff:73f2:1519
115.242.21.26 0:0:0:0:0:ffff:73f2:151a
115.242.21.27 0:0:0:0:0:ffff:73f2:151b
115.242.21.28 0:0:0:0:0:ffff:73f2:151c
115.242.21.29 0:0:0:0:0:ffff:73f2:151d
115.242.21.30 0:0:0:0:0:ffff:73f2:151e
115.242.21.31 0:0:0:0:0:ffff:73f2:151f
115.242.21.32 0:0:0:0:0:ffff:73f2:1520
115.242.21.33 0:0:0:0:0:ffff:73f2:1521
115.242.21.34 0:0:0:0:0:ffff:73f2:1522
115.242.21.35 0:0:0:0:0:ffff:73f2:1523
115.242.21.36 0:0:0:0:0:ffff:73f2:1524
115.242.21.37 0:0:0:0:0:ffff:73f2:1525
115.242.21.38 0:0:0:0:0:ffff:73f2:1526
115.242.21.39 0:0:0:0:0:ffff:73f2:1527
115.242.21.40 0:0:0:0:0:ffff:73f2:1528
115.242.21.41 0:0:0:0:0:ffff:73f2:1529
115.242.21.42 0:0:0:0:0:ffff:73f2:152a
115.242.21.43 0:0:0:0:0:ffff:73f2:152b
115.242.21.44 0:0:0:0:0:ffff:73f2:152c
115.242.21.45 0:0:0:0:0:ffff:73f2:152d
115.242.21.46 0:0:0:0:0:ffff:73f2:152e
115.242.21.47 0:0:0:0:0:ffff:73f2:152f
115.242.21.48 0:0:0:0:0:ffff:73f2:1530
115.242.21.49 0:0:0:0:0:ffff:73f2:1531
115.242.21.50 0:0:0:0:0:ffff:73f2:1532
115.242.21.51 0:0:0:0:0:ffff:73f2:1533
115.242.21.52 0:0:0:0:0:ffff:73f2:1534
115.242.21.53 0:0:0:0:0:ffff:73f2:1535
115.242.21.54 0:0:0:0:0:ffff:73f2:1536
115.242.21.55 0:0:0:0:0:ffff:73f2:1537
115.242.21.56 0:0:0:0:0:ffff:73f2:1538
115.242.21.57 0:0:0:0:0:ffff:73f2:1539
115.242.21.58 0:0:0:0:0:ffff:73f2:153a
115.242.21.59 0:0:0:0:0:ffff:73f2:153b
115.242.21.60 0:0:0:0:0:ffff:73f2:153c


115.242.21.61 0:0:0:0:0:ffff:73f2:153d
115.242.21.62 0:0:0:0:0:ffff:73f2:153e
115.242.21.63 0:0:0:0:0:ffff:73f2:153f
115.242.21.64 0:0:0:0:0:ffff:73f2:1540
115.242.21.65 0:0:0:0:0:ffff:73f2:1541
115.242.21.66 0:0:0:0:0:ffff:73f2:1542
115.242.21.67 0:0:0:0:0:ffff:73f2:1543
115.242.21.68 0:0:0:0:0:ffff:73f2:1544
115.242.21.69 0:0:0:0:0:ffff:73f2:1545
115.242.21.70 0:0:0:0:0:ffff:73f2:1546
115.242.21.71 0:0:0:0:0:ffff:73f2:1547
115.242.21.72 0:0:0:0:0:ffff:73f2:1548
115.242.21.73 0:0:0:0:0:ffff:73f2:1549
115.242.21.74 0:0:0:0:0:ffff:73f2:154a
115.242.21.75 0:0:0:0:0:ffff:73f2:154b
115.242.21.76 0:0:0:0:0:ffff:73f2:154c
115.242.21.77 0:0:0:0:0:ffff:73f2:154d
115.242.21.78 0:0:0:0:0:ffff:73f2:154e
115.242.21.79 0:0:0:0:0:ffff:73f2:154f
115.242.21.80 0:0:0:0:0:ffff:73f2:1550
115.242.21.81 0:0:0:0:0:ffff:73f2:1551
115.242.21.82 0:0:0:0:0:ffff:73f2:1552
115.242.21.83 0:0:0:0:0:ffff:73f2:1553
115.242.21.84 0:0:0:0:0:ffff:73f2:1554
115.242.21.85 0:0:0:0:0:ffff:73f2:1555
115.242.21.86 0:0:0:0:0:ffff:73f2:1556
115.242.21.87 0:0:0:0:0:ffff:73f2:1557
115.242.21.88 0:0:0:0:0:ffff:73f2:1558
115.242.21.89 0:0:0:0:0:ffff:73f2:1559
115.242.21.90 0:0:0:0:0:ffff:73f2:155a
115.242.21.91 0:0:0:0:0:ffff:73f2:155b
115.242.21.92 0:0:0:0:0:ffff:73f2:155c
115.242.21.93 0:0:0:0:0:ffff:73f2:155d
115.242.21.94 0:0:0:0:0:ffff:73f2:155e
115.242.21.95 0:0:0:0:0:ffff:73f2:155f
115.242.21.96 0:0:0:0:0:ffff:73f2:1560
115.242.21.97 0:0:0:0:0:ffff:73f2:1561
115.242.21.98 0:0:0:0:0:ffff:73f2:1562
115.242.21.99 0:0:0:0:0:ffff:73f2:1563
115.242.21.100 0:0:0:0:0:ffff:73f2:1564
115.242.21.101 0:0:0:0:0:ffff:73f2:1565
115.242.21.102 0:0:0:0:0:ffff:73f2:1566
115.242.21.103 0:0:0:0:0:ffff:73f2:1567
115.242.21.104 0:0:0:0:0:ffff:73f2:1568
115.242.21.105 0:0:0:0:0:ffff:73f2:1569
115.242.21.106 0:0:0:0:0:ffff:73f2:156a
115.242.21.107 0:0:0:0:0:ffff:73f2:156b
115.242.21.108 0:0:0:0:0:ffff:73f2:156c
115.242.21.109 0:0:0:0:0:ffff:73f2:156d
115.242.21.110 0:0:0:0:0:ffff:73f2:156e
115.242.21.111 0:0:0:0:0:ffff:73f2:156f
115.242.21.112 0:0:0:0:0:ffff:73f2:1570
115.242.21.113 0:0:0:0:0:ffff:73f2:1571
115.242.21.114 0:0:0:0:0:ffff:73f2:1572
115.242.21.115 0:0:0:0:0:ffff:73f2:1573
115.242.21.116 0:0:0:0:0:ffff:73f2:1574
115.242.21.117 0:0:0:0:0:ffff:73f2:1575
115.242.21.118 0:0:0:0:0:ffff:73f2:1576
115.242.21.119 0:0:0:0:0:ffff:73f2:1577
115.242.21.120 0:0:0:0:0:ffff:73f2:1578


115.242.21.121 0:0:0:0:0:ffff:73f2:1579
115.242.21.122 0:0:0:0:0:ffff:73f2:157a
115.242.21.123 0:0:0:0:0:ffff:73f2:157b
115.242.21.124 0:0:0:0:0:ffff:73f2:157c
115.242.21.125 0:0:0:0:0:ffff:73f2:157d
115.242.21.126 0:0:0:0:0:ffff:73f2:157e
115.242.21.127 0:0:0:0:0:ffff:73f2:157f
115.242.21.128 0:0:0:0:0:ffff:73f2:1580
115.242.21.129 0:0:0:0:0:ffff:73f2:1581
115.242.21.130 0:0:0:0:0:ffff:73f2:1582
115.242.21.131 0:0:0:0:0:ffff:73f2:1583
115.242.21.132 0:0:0:0:0:ffff:73f2:1584
115.242.21.133 0:0:0:0:0:ffff:73f2:1585
115.242.21.134 0:0:0:0:0:ffff:73f2:1586
115.242.21.135 0:0:0:0:0:ffff:73f2:1587
115.242.21.136 0:0:0:0:0:ffff:73f2:1588
115.242.21.137 0:0:0:0:0:ffff:73f2:1589
115.242.21.138 0:0:0:0:0:ffff:73f2:158a
115.242.21.139 0:0:0:0:0:ffff:73f2:158b
115.242.21.140 0:0:0:0:0:ffff:73f2:158c
115.242.21.141 0:0:0:0:0:ffff:73f2:158d
115.242.21.142 0:0:0:0:0:ffff:73f2:158e
115.242.21.143 0:0:0:0:0:ffff:73f2:158f
115.242.21.144 0:0:0:0:0:ffff:73f2:1590
115.242.21.145 0:0:0:0:0:ffff:73f2:1591
115.242.21.146 0:0:0:0:0:ffff:73f2:1592
115.242.21.147 0:0:0:0:0:ffff:73f2:1593
115.242.21.148 0:0:0:0:0:ffff:73f2:1594
115.242.21.149 0:0:0:0:0:ffff:73f2:1595
115.242.21.150 0:0:0:0:0:ffff:73f2:1596
115.242.21.151 0:0:0:0:0:ffff:73f2:1597
115.242.21.152 0:0:0:0:0:ffff:73f2:1598
115.242.21.153 0:0:0:0:0:ffff:73f2:1599
115.242.21.154 0:0:0:0:0:ffff:73f2:159a
115.242.21.155 0:0:0:0:0:ffff:73f2:159b
115.242.21.156 0:0:0:0:0:ffff:73f2:159c
115.242.21.157 0:0:0:0:0:ffff:73f2:159d
115.242.21.158 0:0:0:0:0:ffff:73f2:159e
115.242.21.159 0:0:0:0:0:ffff:73f2:159f
115.242.21.160 0:0:0:0:0:ffff:73f2:15a0
115.242.21.161 0:0:0:0:0:ffff:73f2:15a1
115.242.21.162 0:0:0:0:0:ffff:73f2:15a2
115.242.21.163 0:0:0:0:0:ffff:73f2:15a3
115.242.21.164 0:0:0:0:0:ffff:73f2:15a4
115.242.21.165 0:0:0:0:0:ffff:73f2:15a5
115.242.21.166 0:0:0:0:0:ffff:73f2:15a6
115.242.21.167 0:0:0:0:0:ffff:73f2:15a7
115.242.21.168 0:0:0:0:0:ffff:73f2:15a8
115.242.21.169 0:0:0:0:0:ffff:73f2:15a9
115.242.21.170 0:0:0:0:0:ffff:73f2:15aa
115.242.21.171 0:0:0:0:0:ffff:73f2:15ab
115.242.21.172 0:0:0:0:0:ffff:73f2:15ac
115.242.21.173 0:0:0:0:0:ffff:73f2:15ad
115.242.21.174 0:0:0:0:0:ffff:73f2:15ae
115.242.21.175 0:0:0:0:0:ffff:73f2:15af
115.242.21.176 0:0:0:0:0:ffff:73f2:15b0
115.242.21.177 0:0:0:0:0:ffff:73f2:15b1
115.242.21.178 0:0:0:0:0:ffff:73f2:15b2
115.242.21.179 0:0:0:0:0:ffff:73f2:15b3
115.242.21.180 0:0:0:0:0:ffff:73f2:15b4


115.242.21.181 0:0:0:0:0:ffff:73f2:15b5
115.242.21.182 0:0:0:0:0:ffff:73f2:15b6
115.242.21.183 0:0:0:0:0:ffff:73f2:15b7
115.242.21.184 0:0:0:0:0:ffff:73f2:15b8
115.242.21.185 0:0:0:0:0:ffff:73f2:15b9
115.242.21.186 0:0:0:0:0:ffff:73f2:15ba
115.242.21.187 0:0:0:0:0:ffff:73f2:15bb
115.242.21.188 0:0:0:0:0:ffff:73f2:15bc
115.242.21.189 0:0:0:0:0:ffff:73f2:15bd
115.242.21.190 0:0:0:0:0:ffff:73f2:15be
115.242.21.191 0:0:0:0:0:ffff:73f2:15bf
115.242.21.192 0:0:0:0:0:ffff:73f2:15c0
115.242.21.193 0:0:0:0:0:ffff:73f2:15c1
115.242.21.194 0:0:0:0:0:ffff:73f2:15c2
115.242.21.195 0:0:0:0:0:ffff:73f2:15c3
115.242.21.196 0:0:0:0:0:ffff:73f2:15c4
115.242.21.197 0:0:0:0:0:ffff:73f2:15c5
115.242.21.198 0:0:0:0:0:ffff:73f2:15c6
115.242.21.199 0:0:0:0:0:ffff:73f2:15c7
115.242.21.200 0:0:0:0:0:ffff:73f2:15c8
115.242.21.201 0:0:0:0:0:ffff:73f2:15c9
115.242.21.202 0:0:0:0:0:ffff:73f2:15ca
115.242.21.203 0:0:0:0:0:ffff:73f2:15cb
115.242.21.204 0:0:0:0:0:ffff:73f2:15cc
115.242.21.205 0:0:0:0:0:ffff:73f2:15cd
115.242.21.206 0:0:0:0:0:ffff:73f2:15ce
115.242.21.207 0:0:0:0:0:ffff:73f2:15cf
115.242.21.208 0:0:0:0:0:ffff:73f2:15d0
115.242.21.209 0:0:0:0:0:ffff:73f2:15d1
115.242.21.210 0:0:0:0:0:ffff:73f2:15d2
115.242.21.211 0:0:0:0:0:ffff:73f2:15d3
115.242.21.212 0:0:0:0:0:ffff:73f2:15d4
115.242.21.213 0:0:0:0:0:ffff:73f2:15d5
115.242.21.214 0:0:0:0:0:ffff:73f2:15d6
115.242.21.215 0:0:0:0:0:ffff:73f2:15d7
115.242.21.216 0:0:0:0:0:ffff:73f2:15d8
115.242.21.217 0:0:0:0:0:ffff:73f2:15d9
115.242.21.218 0:0:0:0:0:ffff:73f2:15da
115.242.21.219 0:0:0:0:0:ffff:73f2:15db
115.242.21.220 0:0:0:0:0:ffff:73f2:15dc
115.242.21.221 0:0:0:0:0:ffff:73f2:15dd
115.242.21.222 0:0:0:0:0:ffff:73f2:15de
115.242.21.223 0:0:0:0:0:ffff:73f2:15df
115.242.21.224 0:0:0:0:0:ffff:73f2:15e0
115.242.21.225 0:0:0:0:0:ffff:73f2:15e1
115.242.21.226 0:0:0:0:0:ffff:73f2:15e2
115.242.21.227 0:0:0:0:0:ffff:73f2:15e3
115.242.21.228 0:0:0:0:0:ffff:73f2:15e4
115.242.21.229 0:0:0:0:0:ffff:73f2:15e5
115.242.21.230 0:0:0:0:0:ffff:73f2:15e6
115.242.21.231 0:0:0:0:0:ffff:73f2:15e7
115.242.21.232 0:0:0:0:0:ffff:73f2:15e8
115.242.21.233 0:0:0:0:0:ffff:73f2:15e9
115.242.21.234 0:0:0:0:0:ffff:73f2:15ea
115.242.21.235 0:0:0:0:0:ffff:73f2:15eb
115.242.21.236 0:0:0:0:0:ffff:73f2:15ec
115.242.21.237 0:0:0:0:0:ffff:73f2:15ed
115.242.21.238 0:0:0:0:0:ffff:73f2:15ee
115.242.21.239 0:0:0:0:0:ffff:73f2:15ef
115.242.21.240 0:0:0:0:0:ffff:73f2:15f0
115.242.21.241 0:0:0:0:0:ffff:73f2:15f1
115.242.21.242 0:0:0:0:0:ffff:73f2:15f2
115.242.21.243 0:0:0:0:0:ffff:73f2:15f3
115.242.21.244 0:0:0:0:0:ffff:73f2:15f4
115.242.21.245 0:0:0:0:0:ffff:73f2:15f5
115.242.21.246 0:0:0:0:0:ffff:73f2:15f6
115.242.21.247 0:0:0:0:0:ffff:73f2:15f7
115.242.21.248 0:0:0:0:0:ffff:73f2:15f8
115.242.21.249 0:0:0:0:0:ffff:73f2:15f9
115.242.21.250 0:0:0:0:0:ffff:73f2:15fa
115.242.21.251 0:0:0:0:0:ffff:73f2:15fb
115.242.21.252 0:0:0:0:0:ffff:73f2:15fc
115.242.21.253 0:0:0:0:0:ffff:73f2:15fd
115.242.21.254 0:0:0:0:0:ffff:73f2:15fe
115.242.21.255 0:0:0:0:0:ffff:73f2:15ff


How we got IPv4 subnet masks?

An IPv4 subnet mask consists of 32 bits; it is a sequence of ones (1) followed by a block of zeros (0). The ones indicate bits in the address used for the network prefix and the trailing block of zeros designates that part as being the host identifier.